Home / 100,061,849.79-138,077,812.80-60,899,298.12

Finding the Fourth Proportional to 100,061,849.79, 138,077,812.80 and 60,899,298.12

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Solution

The fourth proportional to 100,061,849.79, 138,077,812.80 and 60,899,298.12 is: 84,036,442.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,061,849.79 : 138,077,812.80 = 60,899,298.12 : x
  2. Step 2: Convert to fraction form
    100,061,849.79/138,077,812.80 = 60,899,298.12/x
  3. Step 3: Cross multiply
    100,061,849.79x = 138,077,812.80 × 60,899,298.12
  4. Step 4: Simplify right side
    100,061,849.79x = 8,408,841,885,464,752
  5. Step 5: Solve for x
    x = 8,408,841,885,464,752/100,061,849.79
  6. Step 6: Final answer
    x = 84,036,442.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.